Files in Omada_Controller_v3.2.6_linux_x64_deb are owned by uid 1001
Looks like the .deb was not built properly and the files shipped in the Debian archive are owned by 1001:1001
# ls -la /opt/tplink/EAPController/
drwxrwxr-x 11 1001 1001 4096 Jan 30 01:42 .
drwxrwxr-x 3 1001 1001 4096 Jan 30 01:42 ..
drwxrwxr-x 2 1001 1001 4096 Jan 30 01:42 bin
drwxrwxr-x 7 omada omada 4096 Jan 30 01:42 data
drwxr-xr-x 5 1001 1001 4096 Jan 30 01:42 jre
drwxrwxr-x 2 1001 1001 4096 Jan 30 01:42 keystore
drwxrwxr-x 2 1001 1001 12288 Jan 30 01:42 lib
drwxr-x--- 2 omada omada 4096 Jan 30 01:42 logs
drwxrwxr-x 2 1001 1001 4096 Jan 30 01:42 properties
drwxrwxr-x 2 1001 1001 4096 Jan 30 01:42 webapps
drwxr-x--- 3 omada omada 4096 Jan 30 01:42 work
Those files should be owned by root:root